WO2019083702A1 - Transmission de données avec de multiples numérologies pour de multiples dispositifs ayant des informations de commande dépendantes d'un emplacement géographique commun - Google Patents

Transmission de données avec de multiples numérologies pour de multiples dispositifs ayant des informations de commande dépendantes d'un emplacement géographique commun

Info

Publication number
WO2019083702A1
WO2019083702A1 PCT/US2018/054194 US2018054194W WO2019083702A1 WO 2019083702 A1 WO2019083702 A1 WO 2019083702A1 US 2018054194 W US2018054194 W US 2018054194W WO 2019083702 A1 WO2019083702 A1 WO 2019083702A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
time
control information
devices
numerology
Prior art date
Application number
PCT/US2018/054194
Other languages
English (en)
Inventor
Amit Kalhan
Original Assignee
Kyocera Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyocera Corporation filed Critical Kyocera Corporation
Priority to JP2020543465A priority Critical patent/JP7019826B2/ja
Priority to US16/754,664 priority patent/US11310008B2/en
Publication of WO2019083702A1 publication Critical patent/WO2019083702A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H04L5/0046—Determination of how many bits are transmitted on different sub-channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0069—Allocation based on distance or geographical location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • This invention generally relates to wireless communications and more particularly to devices and methods for transmitting a signal having a time-frequency resources with multiple numerologies to multiple user equipment (UE) devices with common geographical location control information.
  • UE user equipment
  • base stations transmit signals to multiple devices within a service area where each device receives unique control information based on its specific geographical location.
  • control information that is dependent on the geographical location of the UE device include parameters related to multiple input multiple output (MIMO) antenna.
  • MIMO multiple input multiple output
  • MCS modulations coding scheme
  • Machine type communication (MTC) and narrow band Internet of Things (NB- loT are forms of data communication which involve one or more entities that do not necessarily need human interaction.
  • MTC and NB-loT devices can be categorized as narrowband (NB) devices.
  • NB device may communicate with one or more servers or with other devices.
  • MTC is related to low-power wide-area network (LPWAN) type communications
  • NB-loT is related to small devices connected to the Internet or each other (ad-hoc network).
  • the network operator provides network connectivity to MTC or loT server(s) regardless of whether the server is controlled by the network operator.
  • An MTC device is typically a user equipment (UE) device that is equipped for Machine Type Communication and communicates through a public land mobile network (PLMN) with MTC Server(s) and/or other MTC Device(s). In some situations, an MTC device might also communicate locally through a hardwired or wireless connection with other entities.
  • UE user equipment
  • PLMN public land mobile network
  • Examples of NB-IOT include consumer products such as headsets, Google glasses and Facebook Oculus.
  • MTC is more related to vending machines, meters, vehicle modems, and other similar devices.
  • MTC devices are increasingly being used in a variety of applications.
  • Examples of some of the general areas of use include security, tracking, health, payment, remote diagnostics, metering and consumer electronics.
  • Some of the many specific applications include surveillance system control, control of physical access (e.g. to buildings), fleet management, order management, asset tracking, navigation, traffic information, road tolling, point of sales, vending machines, gaming machines, vital signs monitoring, web access telemedicine points, remote maintenance and control of sensors, lighting, pumps, valves, and elevators, vehicle diagnostics, metering of power, gas, water and heating, grid control, and management and control of digital photo frames, cameras and eBooks.
  • NB-loT and MTC devices can be categorized as narrowband (NB) devices since these types of devices generally use narrower bandwidth channels than other types of devices operating on a communication network.
  • NB devices can operate on a mobile broadband (MBB) network which often operate in accordance with a MBB network.
  • MBB mobile broadband
  • a base station transmits a transmission signal to a first device and a second device where the transmission signal includes time-frequency resources using different numerologies and conveys first data to the first device and second data to the second device and common geographic location dependent control information to both devices.
  • the transmission comprises a first set of time-frequency resources having a first numerology and a second set of time-frequency resources having a second
  • the first data is transmitted over the first set of time-frequency resources and the common geographic location dependent control information is transmitted over the second set of time-frequency resources.
  • FIG. 1 A is a block diagram of a wireless communication system where a base station transmits a multiple device transmission to multiple co-located user equipment (UE) devices including at least a first device 108 and a second device.
  • UE user equipment
  • FIG. 1 D is a block diagram of a multiple device transmission for an example where the first device data and the second device data, and the device specific control information is transmitted over the first set of time-frequency resources and the common location dependent control information is transmitted over the second set of time- frequency resources.
  • FIG. 2 is a block diagram of a communication system with a base station transmitting a multiple device transmission including layered data and a control message to multiple user equipment (UE) devices.
  • UE user equipment
  • FIG. 3 is a block diagram of the base station for an example where the data layering technique includes layered modulation.
  • FIG. 6 is a block diagram of a base station for an example where the data layering technique includes code division multiplexing (CDM).
  • CDM code division multiplexing
  • FIG. 8 is a block diagram of a UE device 800 for an example where the layered data signal is a layered using CDM.
  • FIG. 9 is block diagram of transmissions from a base station for an example where a continuous block of spectrum includes a first set of time-frequency resources adjacent to a second set of time-frequency resources.
  • FIG. 10 is a flow chart of an example of a method of transmitting a multiple device transmission to multiple devices that are in close proximity to each other.
  • multiple user equipment (UE) devices may be positioned in close proximity to each other. Such situations may occur where the multiple devices are associated with the same user and may be being used at the same time. For example, a user may be watching a video on a smartphone and listening to the associated audio stream on a headset.
  • UE user equipment
  • more and more users use multiple devices for different purposes. For example, a user carries a smartphone, a tablet and a smartwatch and each device has wireless connectivity. All these devices independently connect to the network to perform different functions. As the number of devices connected to the network increases the traffic-load increases as well as the management of these devices increases. In order to provide efficient wireless services to the multiple devices used by the same user there is a need to reduce the amount of spectrum-resources and control-signaling.
  • Device specific control information including first device control information and second device control information, is also transmitted in the signal transmission in at least some examples.
  • Device specific control information includes data layer control information where data layering is used.
  • the data layer control information applies to a particular device and allows that device to recover the data within the data layered signal that is directed to that device. Therefore, multiple UE devices receive the same transmission signal with geographically dependent control information but recover only the data intended for the particular device.
  • communication resources are efficiently utilized since the same time, frequency and spatial communication resources are used to transmit data to all of the UE devices while transmitting a control message that applies to all of the UE devices receiving the data signal.
  • FIG. 1A is a block diagram of a wireless communication system 100 where a base station 102 transmits a multiple device transmission 104 to multiple co-located user equipment (UE) devices 106 including at least a first device 108 and a second device 1 10.
  • the wireless communication system 100 may be any type of wireless communication network or system where a base station connected to communication network transmits and receive wireless to and from UE devices to provide wireless service to the devices.
  • the communication system therefore, may be any type of
  • the communication system operates in accordance with a at least one communication specification such as one or more of The Third Generation Partnership Project (3GPP) 4G and 5G specifications.
  • 3GPP Third Generation Partnership Project
  • the base station 102 is an eNB, eNodeB, gNodeB, access point, transceiver, radio head, or any other device performing similar tasks in a system otherwise operating in accordance with a revision of a 3GPP communication specification.
  • the various functions and operations of the base station 102 may be implemented in any number of devices, circuits, electronics, code, or elements.
  • the base station 102 transmits the multiple device transmission 104 to at least two UE devices 108, 1 10 that are
  • the transmissions from the base station 102 employ a frequency-division multiplexing (FDM) scheme and, for the examples herein, are orthogonal frequency- division multiplexing (OFDM) signals where digital data is encoded on multiple carrier frequencies.
  • the communication resources used for transmission include time- frequency resources where time is divided on multiple subcarriers.
  • base stations provide different services over a block of continuous spectrum by supporting FDM based multiple numerologies.
  • the OFDM numerology may be configurable in order to meet different requirements of each service type.
  • the transmission 104 utilizes at least two sets of time-frequency resources with different numerologies.
  • the numerology defines the structure and organization of the time- frequency resources.
  • the numerology defines at least the subcarrier spacing (SCS), and cyclic prefix (CP). Differences in SCS result in different symbol-duration and therefore lead to different associated CP lengths.
  • SCS subcarrier spacing
  • CP cyclic prefix
  • the numerology is configurable in order to meet different requirements of each service type.
  • the multiple device transmission 104 includes a first set of time-frequency resources 1 12 having a first numerology and a second set of time- frequency resources 1 14 having a second numerology.
  • First device data 1 16 for the first device 108 is transmitted over at least some of the resources in the first set of time- frequency resources 1 12.
  • the common geographically dependent control information 1 18 applicable to both UE devices is transmitted over at least some resources of the second set of time-frequency resources 1 14.
  • second device data 120 and device specific control information 122, 124 is also transmitted in the multiple device transmission 104.
  • the second device data 120 and the device specific control information 122, 124 may be transmitted using the first set of time frequency communication resources 1 12 or the second set of time frequency communication resources 1 14 depending on the particular implementation example.
  • the blocks representing the second device data 120 and the first device specific control information 122 and the second device specific control information 124 are shown with dashed lines in FIG. 1 to indicate that the data and information may be transmitted with different combinations of communication resources comprised of the first set 1 12 and second set 1 14.
  • the second device data can be transmitted over the first set of time-frequency resources 1 12 where the first device control information 122 and the second device control information 124 are transmitted over the second set of time-frequency resources 1 14.
  • FIG. 1 B is a block diagram of a multiple device transmission 104 for an example where the first device data 1 16 is transmitted over the first set of time- frequency resources and the device specific control information 122, 124 and the second device data is transmitted over the second set of time-frequency resources.
  • the second device data 120 therefore is transmitted over time-frequency resources having a different numerology than the time-frequency resources for transmitted the first device data 1 16.
  • the first device control information 122 and the second device control information 124 are also transmitted over the time-frequency resources having the second numerology.
  • MBB mobile broadband
  • the first numerology for such a scenario therefore, facilitates higher data rates and may include a subcarrier spacing (SCS) that results in relatively wide subcarriers, for example.
  • the second numerology may more efficiently support lower data rates with, for example, a SCS that includes narrower subcarriers.
  • transmitting the common location control information 1 18 with the second numerology increases transmission efficiency in the system.
  • FIG. 1 D is a block diagram of a multiple device transmission 104 for an example where the first device data 1 16 and the second device data 1 18, and the device specific control information 122, 124 is transmitted over the first set of time- frequency resources and the common location dependent control information 1 18 is transmitted over the second set of time-frequency resources.
  • Such a scenario may be useful where Paging/Wake-up signals are sent to a headset and a smartphone in the second set of time-frequency resources 1 14 and then data/control to both the devices in 1 12 carrier.
  • the two data sets may share the same resources using layered modulation and/or CDM techniques or the second device data 120 may be "punctured" into the set of resources by applying the second device data 120 to unused time-frequency resources in the set that are not occupied with first device data.
  • the multiple device transmission 104 therefore, shares time, frequency and spatial resources to send information to multiple devices that are located near each other.
  • the multiple device transmission 104 includes common location dependent control information 1 18 that applies to multiple proximate devices and device specific data control information 122, 124 that includes device specific layering control information for each device regarding the data layering parameters.
  • the layered data uses the same time, frequency and spatial communication resources to convey device dependent data to each of the devices.
  • Each device uses the common location dependent control information 1 18 and device dependent information in the device specific control information 122, 124 to receive the data 1 16, 120 from the layered data that is directed to that device. For two co-located devices, therefore, a first device 108 applies first information in the device specific control information 122 to recover first device data 1 16 and a second device applies second information in the device specific control information 124 to recover second device data 120.
  • the proximate devices are close enough to each other such that the common control information such as spatial vectors and MIMO parameters are at least similar and, in some situations, the same.
  • the devices may be within one foot from each other.
  • the distance between the devices is less than two feet.
  • the devices are less than three feet from each other. Other distances between the devices may also be possible depending on the particular system implementation and channel conditions.
  • FIG. 2 is a block diagram of a communication system 100 with a base station 102 transmitting a multiple device transmission 104 including layered data 202 and a control message 204 to multiple user equipment (UE) devices 108, 1 10.
  • FIG. 2 is an example of the system 100 of FIG. 1 A where the first device data 1 16 and the second device data 120 are transmitted as layered data 202 in the first set of time-frequency resources 1 12.
  • the device specific data 122, 124 and the communication location depend control information 1 18 are transmitted over the second set of time-frequency resources 1 14.
  • the control message 204 and the layered data signal 202 therefore, are an example of the multiple device transmission 104.
  • the base station 102 arranges the data on the layered data signal 202 such that first device data 1 18 directed to the first device 108 is transmitted within a first data layer of the signal and second data 120 directed to a second device 1 10 is transmitted within a second data layer of the signal.
  • the data layering may be applied using any of several techniques, two examples discussed herein include applying layered modulation to the data and applying code division multiplexing (CDM) to the data.
  • CDM code division multiplexing
  • the base station 102 also sends a control message 204 that includes control information regarding reception of the data layered signal 202 at the UE devices 108, 1 10.
  • the control message 204 includes the common geographical location dependent control information 1 18 and at least one data layer information field for each device. For the example of FIG.
  • the common geographical location dependent control information 1 18 is control information that results, or is otherwise dependent on, the location of the UE devices 108, 1 10. Examples of common geographical location dependent control information 1 18 includes MIMO settings Precoding Matrix Index (PMI), PMI
  • the data layer information fields may include modulation coding scheme (MCS), redundancy version (RV), new data indicator (NDI), and data sequence information for each data stream.
  • MCS modulation coding scheme
  • RV redundancy version
  • NDI new data indicator
  • the data layering information fields may include information to the related CDM codes used for scrambling or spreading, for example.
  • the control message 204 includes a first data layering information field 218 for the first device 108, a second data layering information field 220 for the first device, a first data layering information field 222 for the second device, and a second data layering information field 224 for the second device.
  • the base station 102 therefore, transmits the control message 204 over the control channel 230 to the first UE device 108 and to the second UE device 1 10 and transmits the first data 1 16 and the second data 120 in a data layered signal 202 over the data channel 232 to the first UE device 108 and the second UE device 1 10.
  • the control channel 230 is transmitted using the second numerology over the second set of time-frequency resources 1 14.
  • the data channel 232 uses the first numerology and at least some of the first set of time-frequency resources 1 12.
  • the first UE device 108 receives the control message 204 and applies the common control information 1 18 to the receive the data layered signal 202 and applies the data layering control information 226, 228 in the first device data layering information fields 218, 220 to recover the first data (D1 data) 1 16.
  • the second UE device 1 10 receives the control message 204 and applies the common control information 1 18 to receive the data layered signal 202 and applies the data layering control information 226, 228 in the second device data layering information fields 222, 224 to recover the second data (D2 data) 120.
  • the various functions and operations of the blocks described with reference to the base station 300 may be implemented in any number of devices, circuits, electronics, code, or elements. Two or more of the functional blocks may be integrated in a single device, and the functions described as performed in any single block may be implemented over several devices.
  • the functions of the two encoders 306, 310 in the base station 300 may be performed by a single device able to apply different coding rates to different sets of bits.
  • the functions of the encoders 306, 310 and sequencer 314 may be performed by a single signal processing device in some circumstances.
  • First data 302 intended for the first device 108 includes K1 number of information bits.
  • Second data 304 intended for the second device 1 10 includes K2 number of information bits.
  • the first data information bits 302 are coded by a first encoder 306 having a first coding rate (R1 ) to generate a first set of coded bits 308.
  • the second data information bits 304 are coded by a second encoder 310 having a second coding rate (R2) to generate a second set of coded bits 312.
  • R1 first coding rate
  • R2 second coding rate
  • a sequencer 314 combines the bits from the first set of coded bits 308 and from the second set of coded bits 312 in a sequence of bits that is modulated by the modulator 316.
  • the sequence of bits includes an equal number of first coded bits 308 and second coded bits 312 in the example.
  • the modulator 316 is a p th order modulator that applies layered modulation to the sequence of coded bits.
  • a MCS manager 318 determines the coding rates and modulation order at least partially based on feedback 320 from one of the UE devices.
  • the MCS manager 316 evaluates the required quality of service (QoS) and channel conditions to determine the appropriate modulation order and coding rates. For the example, only one of the UE devices provides feedback 320 regarding reception of signals transmitted by the base station 320. Since the UE devices 108, 1 10 are near each other, it is assumed that the feedback from one device is similar to feedback that would have provided by another device. In some circumstances, however, feedback 320 may be provided by multiple UE devices even though they are positioned close to each other. Examples of device feedback include parameters related to channel conditions and timing.
  • the L symbols generated by the modulator 316 are processed by a resource and spatial processor 322 before being transmitted by the transmitter.
  • Control information 324 including the control message is also processed by the processor 322 before transmission.
  • Resource mappings includes assigning timeslots and subcarriers to be used for the transmission.
  • Spatial processing includes applying the spatial coefficients based on the MIMO parameters to the signal before transmission. For example, a beamforming vector (precoding) can be applied to the transmission signal.
  • the control information may have the same spatial processing parameters as the transmission signal.
  • a transmitter 326 transmits the layered modulated signal 104 within the service area, or sector of the service area, of the base station 300.
  • the coding rates, K1 , and K2 are selected such that the number (K1 ) of coded bits 308 in the first set is equal to the number (K2) of coded bits 312 in the second set.
  • L is the total number of modulated symbols generated in the data layered signal 104
  • the number of coded bits in the first set of coded bits and the number of coded bits in the second set of coded bits is equal to pL/2 where p is the modulation order of the modulator 316.
  • the sequencer 314 applies the coded bits from the first encoder 306 as the most significant bits of the symbol and applies coded bits from the second encoder 310 to the least significant bits of the symbol.
  • the sequences of coded bits are predetermined and static. In other circumstances, however, the sequence of the bits in the transmission is dynamically changing or otherwise not known by the UE devices 108, 1 10. As a result, the base station 300 provides the sequence to the UE devices 108, 1 10 as part of the control information in the control message 204.
  • a base station provides Modulation and Coding Scheme (MCS) configuration information to UE devices.
  • MCS Modulation and Coding Scheme
  • the base station 200 provides the MCS information for both coding rates.
  • the base station transmits MCS1 and MCS2.
  • the receiver decodes the control channel and accordingly demodulates/decodes the associated data streams.
  • the control message 204 includes common control information 1 18 that is dependent on the location of the UE devices and control information related to the resources used for transmitting the data and which applies to both UE devices.
  • the control message 204 also includes specific control information related to the data layers that is unique to each UE device. For the example of FIG.
  • the control message 204 includes the MCS for the first data, the MCS for the second data, sequence information indicating LSB or MSB for the first data, sequence information indicating LSB or MSB for the second data, RV and NDI for the first data, RV and NDI for the second data, data location in the signal (which is the same for the first data and the second data), and MIMO
  • FIG. 4 is a block diagram of a UE device 400 for an example where the layered data signal is a layered modulation signal.
  • the UE device 400 is an example of a UE device suitable for uses as the UE device 108 and the UE device 1 10 for the example discussed with reference to FIG. 2.
  • the various functions and operations of the blocks described with reference to the UE device 400 may be implemented in any number of devices, circuits, electronics, code, or elements. Two or more of the functional blocks may be integrated in a single device, and the functions described as performed in any single block may be implemented over several devices.
  • the functions of the receiver 402, the demodulator 404 as well as other spatial processing and de-mapping functions 404 may be performed by a single receiver apparatus in some circumstances.
  • the receiver 402 receives the data layered signal 104 from the base station 102 (200).
  • a resource de-mapping and spatial processor 404 performs spatial processing and de-mapping.
  • the receiver 402 applies MIMO
  • Resource de-mapping separates the control channel from the data channel (PDCCH and PDSCH) time/frequency resources.
  • the receiver 402 After decoding the PDCCH, the receiver 402 determines the exact PDSCH time/frequency resources to extract the data bits before demodulation and decoding.
  • the control channel decoder 406 identifies the coding rate and sequence order assigned to the first UE device 108 and the decoder 412 applies the information to recover the first data 1 16.
  • the control channel decoder 406 identifies the coding rate and sequence order assigned to the second UE device 1 10 the decoder 412 applies the information to recover the second data 120.
  • MTC devices are increasingly being used for numerous applications where the MTC devices exchange information with other devices and servers.
  • the network facilitating communication with the MTC devices must handle the increased traffic due to the numerous MTC devices while accommodating the particular requirements and limitations of the MTC devices. At the same time, users are
  • the proximity of MTC devices associated with the same user provides an opportunity to apply the techniques discussed herein to more efficiently utilize communication resources.
  • the data layering techniques use the same time- frequency-spatial resources to service multiple devices.
  • the use of differing numerologies allows increased efficiency by transmitting the common location control information 1 18 over a numerology more suitable for lower data rates and transmitting MBB data for the UE device using a numerology more suitable for higher data rates.
  • FIG. 5 is an illustration of an example of a multiple device transmission 104 from the base station 102 showing communication resource allocation where the first device 108 is an MBB UE device, the second device 1 10 is a MTC device that is near the MBB UE device (non-MTC device), and layered modulation is used to layer the data.
  • the multiple device transmission 104 therefore, is a layered modulation transmission 500 for the example of FIG. 5.
  • the MBB UE device may be a smartphone and the MTC device may be a headset where both devices are being used by a single user. Since the headset is an MTC device, it operates at a much narrower bandwidth than the smart phone and, therefore, transmits and receives signals at the narrower bandwidth.
  • a control message 502 in the transmission 500 includes control information for the MTC device and the smartphone.
  • the transmission 500 utilizes a continues block of spectrum 504 where a first set of communication resources 506 uses a first numerology and a second set of
  • the remainder of the time resources in the second set of communication resources 506 may include layered data for a third device or may only include data for the UE devices 108. In other situations, the entire set of communication resources 506 may include layered data for the two devices 108, 1 10.
  • the smartphone (UE device) 108 decodes the control message 502 and recovers the data 510 in the first data layer 512 that is directed to the smartphone.
  • the headset 1 10 decodes the control message 502 and recovers the data 514 in the second data layer 516 directed to the headset (MTC device) 1 10. Therefore, the base station transmits a transmission signal to the UE device and the MTC device where the two devices are close enough that at least some of the control information that is dependent on device location is the same.
  • the transmission signal includes a plurality of data subcarriers conveying UE data for the UE device.
  • the data layer control information is arranged different fields in the downlink control information (DCI) such that a UE field contains the UE data layer control information and a MTC field contains the MTC data layer control information.
  • DCI downlink control information
  • the UE data layer control information identifies time-frequency resources conveying the UE data
  • the MTC data layer control information identifies time-frequency resources conveying the MTC data.
  • the geographic location dependent control information includes control information that applies to both devices because of their common location and may include parameters such as multiple input multiple output (MIMO) parameters and transmission mode parameters.
  • MIMO multiple input multiple output
  • the transmission signal is transmitted in accordance with at least one revision of The Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) specification or 5G specifications such that the control subcarriers provide a Physical Downlink Control Channel (PDCCH) for conveying the geographic location dependent control information and the data layer control information.
  • 3GPP Third Generation Partnership Project
  • LTE Long Term Evolution
  • 5G 5th Generation Partnership Project
  • the control subcarriers provide a Physical Downlink Control Channel (PDCCH) for conveying the geographic location dependent control information and the data layer control information.
  • PDCCH Physical Downlink Control Channel
  • an additional downlink control information (DCI) field in the PDCCH can includes an indication that MTC data is included on the least some of the subcarriers that are carrying UE data.
  • the data layer control information comprises a UE modulation order for the UE data layer and a MTC modulation order for the MTC data layer.
  • the information bits of UE data can be encoded with a first coding rate to generate first encoded bits and the information bits of the MTC data can be encode with a second coding rate to generate second encoded bits.
  • the first encoded bits and the second encoded bits are then modulated by the modulator to generate a modulated signal including symbols representing both the MTC data and the UE data.
  • the data layer control information includes the first encoding rate and the second encoding rate.
  • the first encoded bits and the second encoded bits are arranged in a sequence of bits such that, when the sequence of bits is modulated, the UE data is represented with by the LSB or MSB of each modulation symbol and the MTC data is represented by the other of the LSB set or MSB set that is not being used for the UE data.
  • the UE data layer control information then identifies whether the LSBs or the MSBs are representing UE data and the MTC data layer control information identifies whether the LSBs or the MSBs are representing the MTC data.
  • FIG. 6 is a block diagram of a base station 600 for an example where the data layering technique includes code division multiplexing (CDM).
  • the base station 600 of FIG. 6 is an example of the base station 102 in the example of FIG. 1 B.
  • the base station 600 separately encodes the data for each device and separately modulates each set of encoded data to generate before the modulated data is code division multiplexed with orthogonal codes.
  • the CDM signals are further processed before transmission to the devices.
  • the base station 600 is an eNB, eNodeB, access point, or any other device performing similar tasks in a system otherwise operating in accordance with a revision of a 3GPP communication
  • a transmitter 628 transmits the data layered signal 104 within the service area, or sector of the service area, of the base station 600.
  • the control message 204 identifies the CDM codes (C 0 , C-i , C2) used for spreading the coded bits.
  • the transmitter 628 is an OFDM transmitter.
  • Other types of related transmission technologies may be used to transmit the signal such as for example, Filter Bank Multicarrier (FBMC) techniques.
  • FBMC Filter Bank Multicarrier
  • FIG. 1 1 is a flow chart of a method of receiving a multiple device transmission 104 at a MBB UE device.
  • the steps of FIG. 1 1 can be performed in a different order than shown and some steps may be combined into a single step.
  • the control information for example, may be received before the data signal in may circumstances. Additional steps may be performed and some steps may be omitted.
  • the method is performed by an MBB UE device such as the first UE device 108.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne une station de base transmettant un signal de transmission à un premier dispositif et à un second dispositif, le signal de transmission comprenant des ressources temps-fréquence à l'aide de différentes numérologies et acheminant des premières données vers le premier dispositif et des secondes données vers le second dispositif et des informations de commande dépendant de l'emplacement géographique commun aux deux dispositifs. La transmission comprend un premier ensemble de ressources temps-fréquence ayant une première numérologie et un second ensemble de ressources temps-fréquence ayant une seconde numérologie. Les premières données sont transmises sur le premier ensemble de ressources temps-fréquence et les informations de commande dépendantes de l'emplacement géographique commun sont transmises sur le second ensemble de ressources temps-fréquence.
PCT/US2018/054194 2017-10-23 2018-10-03 Transmission de données avec de multiples numérologies pour de multiples dispositifs ayant des informations de commande dépendantes d'un emplacement géographique commun WO2019083702A1 (fr)

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JP2020543465A JP7019826B2 (ja) 2017-10-23 2018-10-03 共通の地理的位置依存制御情報を用いる複数の装置のための複数のニューメロロジー（ｎｕｍｅｒｏｌｏｇｉｅｓ）によるデータ送信
US16/754,664 US11310008B2 (en) 2017-10-23 2018-10-03 Data transmission with multiple numerologies for multiple devices with common geographical location dependent control information

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US201762575907P 2017-10-23 2017-10-23
US62/575,907 2017-10-23
US201862723094P 2018-08-27 2018-08-27
US62/723,094 2018-08-27

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